blob: 042d4ec9bd3a1277c1022c241815d06697f62dbf [file] [log] [blame]
Michael Landoefa037d2017-02-19 12:57:33 +02001//
2// Forms
3// --------------------------------------------------
4
5// Normalize non-controls
6//
7// Restyle and baseline non-control form elements.
8
9fieldset {
10 padding: 0;
11 margin: 0;
12 border: 0;
13 // Chrome and Firefox set a `min-width: min-content;` on fieldsets,
14 // so we reset that to ensure it behaves more like a standard block element.
15 // See https://github.com/twbs/bootstrap/issues/12359.
16 min-width: 0;
17}
18
19legend {
20 display: block;
21 width: 100%;
22 padding: 0;
23 margin-bottom: $line-height-computed;
24 font-size: ($font-size-base * 1.5);
25 line-height: inherit;
26 color: $legend-color;
27 border: 0;
28 border-bottom: 1px solid $legend-border-color;
29}
30
31label {
32 display: inline-block;
33 max-width: 100%; // Force IE8 to wrap long content (see https://github.com/twbs/bootstrap/issues/13141)
34 margin-bottom: 5px;
35 font-weight: bold;
36}
37
38// Normalize form controls
39//
40// While most of our form styles require extra classes, some basic normalization
41// is required to ensure optimum display with or without those classes to better
42// address browser inconsistencies.
43
44// Override content-box in Normalize (* isn't specific enough)
45input[type="search"] {
46 @include box-sizing(border-box);
47}
48
49// Position radios and checkboxes better
50input[type="radio"],
51input[type="checkbox"] {
52 margin: 4px 0 0;
53 margin-top: 1px \9; // IE8-9
54 line-height: normal;
55}
56
57input[type="file"] {
58 display: block;
59}
60
61// Make range inputs behave like textual form controls
62input[type="range"] {
63 display: block;
64 width: 100%;
65}
66
67// Make multiple select elements height not fixed
68select[multiple],
69select[size] {
70 height: auto;
71}
72
73// Focus for file, radio, and checkbox
74input[type="file"]:focus,
75input[type="radio"]:focus,
76input[type="checkbox"]:focus {
77 @include tab-focus;
78}
79
80// Adjust output element
81output {
82 display: block;
83 padding-top: ($padding-base-vertical + 1);
84 font-size: $font-size-base;
85 line-height: $line-height-base;
86 color: $input-color;
87}
88
89// Common form controls
90//
91// Shared size and type resets for form controls. Apply `.form-control` to any
92// of the following form controls:
93//
94// select
95// textarea
96// input[type="text"]
97// input[type="password"]
98// input[type="datetime"]
99// input[type="datetime-local"]
100// input[type="date"]
101// input[type="month"]
102// input[type="time"]
103// input[type="week"]
104// input[type="number"]
105// input[type="email"]
106// input[type="url"]
107// input[type="search"]
108// input[type="tel"]
109// input[type="color"]
110
111.form-control {
112 display: block;
113 width: 100%;
114 height: $input-height-base; // Make inputs at least the height of their button counterpart (base line-height + padding + border)
115 padding: $padding-base-vertical $padding-base-horizontal;
116 font-size: $font-size-base;
117 line-height: $line-height-base;
118 color: $input-color;
119 background-color: $input-bg;
120 background-image: none; // Reset unusual Firefox-on-Android default style; see https://github.com/necolas/normalize.css/issues/214
121 border: 1px solid $input-border;
122 border-radius: $input-border-radius; // Note: This has no effect on <select>s in some browsers, due to the limited stylability of <select>s in CSS.
123 @include box-shadow(inset 0 1px 1px rgba(0, 0, 0, .075));
124 @include transition(border-color ease-in-out .15s, box-shadow ease-in-out .15s);
125
126 // Customize the `:focus` state to imitate native WebKit styles.
127 @include form-control-focus;
128
129 // Placeholder
130 @include placeholder;
131
132 // Disabled and read-only inputs
133 //
134 // HTML5 says that controls under a fieldset > legend:first-child won't be
135 // disabled if the fieldset is disabled. Due to implementation difficulty, we
136 // don't honor that edge case; we style them as disabled anyway.
137 &[disabled],
138 &[readonly],
139 fieldset[disabled] & {
140 background-color: $input-bg-disabled;
141 opacity: 1; // iOS fix for unreadable disabled content; see https://github.com/twbs/bootstrap/issues/11655
142 }
143
144 &[disabled],
145 fieldset[disabled] & {
146 cursor: $cursor-disabled;
147 }
148
149 // [converter] extracted textarea& to textarea.form-control
150}
151
152// Reset height for `textarea`s
153textarea.form-control {
154 height: auto;
155}
156
157// Search inputs in iOS
158//
159// This overrides the extra rounded corners on search inputs in iOS so that our
160// `.form-control` class can properly style them. Note that this cannot simply
161// be added to `.form-control` as it's not specific enough. For details, see
162// https://github.com/twbs/bootstrap/issues/11586.
163
164input[type="search"] {
165 -webkit-appearance: none;
166}
167
168// Special styles for iOS temporal inputs
169//
170// In Mobile Safari, setting `display: block` on temporal inputs causes the
171// text within the input to become vertically misaligned. As a workaround, we
172// set a pixel line-height that matches the given height of the input, but only
173// for Safari. See https://bugs.webkit.org/show_bug.cgi?id=139848
174//
175// Note that as of 8.3, iOS doesn't support `datetime` or `week`.
176
177@media screen and (-webkit-min-device-pixel-ratio: 0) {
178 input[type="date"],
179 input[type="time"],
180 input[type="datetime-local"],
181 input[type="month"] {
182 &.form-control {
183 line-height: $input-height-base;
184 }
185
186 &.input-sm,
187 .input-group-sm & {
188 line-height: $input-height-small;
189 }
190
191 &.input-lg,
192 .input-group-lg & {
193 line-height: $input-height-large;
194 }
195 }
196}
197
198// Form groups
199//
200// Designed to help with the organization and spacing of vertical forms. For
201// horizontal forms, use the predefined grid classes.
202
203.form-group {
204 margin-bottom: $form-group-margin-bottom;
205}
206
207// Checkboxes and radios
208//
209// Indent the labels to position radios/checkboxes as hanging controls.
210
211.radio,
212.checkbox {
213 position: relative;
214 display: block;
215 margin-top: 10px;
216 margin-bottom: 10px;
217
218 label {
219 min-height: $line-height-computed; // Ensure the input doesn't jump when there is no text
220 padding-left: 20px;
221 margin-bottom: 0;
222 font-weight: normal;
223 cursor: pointer;
224 }
225}
226
227.radio input[type="radio"],
228.radio-inline input[type="radio"],
229.checkbox input[type="checkbox"],
230.checkbox-inline input[type="checkbox"] {
231 position: absolute;
232 margin-left: -20px;
233 margin-top: 4px \9;
234}
235
236.radio + .radio,
237.checkbox + .checkbox {
238 margin-top: -5px; // Move up sibling radios or checkboxes for tighter spacing
239}
240
241// Radios and checkboxes on same line
242.radio-inline,
243.checkbox-inline {
244 position: relative;
245 display: inline-block;
246 padding-left: 20px;
247 margin-bottom: 0;
248 vertical-align: middle;
249 font-weight: normal;
250 cursor: pointer;
251}
252
253.radio-inline + .radio-inline,
254.checkbox-inline + .checkbox-inline {
255 margin-top: 0;
256 margin-left: 10px; // space out consecutive inline controls
257}
258
259// Apply same disabled cursor tweak as for inputs
260// Some special care is needed because <label>s don't inherit their parent's `cursor`.
261//
262// Note: Neither radios nor checkboxes can be readonly.
263input[type="radio"],
264input[type="checkbox"] {
265 &[disabled],
266 &.disabled,
267 fieldset[disabled] & {
268 cursor: $cursor-disabled;
269 }
270}
271
272// These classes are used directly on <label>s
273.radio-inline,
274.checkbox-inline {
275 &.disabled,
276 fieldset[disabled] & {
277 cursor: $cursor-disabled;
278 }
279}
280
281// These classes are used on elements with <label> descendants
282.radio,
283.checkbox {
284 &.disabled,
285 fieldset[disabled] & {
286 label {
287 cursor: $cursor-disabled;
288 }
289 }
290}
291
292// Static form control text
293//
294// Apply class to a `p` element to make any string of text align with labels in
295// a horizontal form layout.
296
297.form-control-static {
298 // Size it appropriately next to real form controls
299 padding-top: ($padding-base-vertical + 1);
300 padding-bottom: ($padding-base-vertical + 1);
301 // Remove default margin from `p`
302 margin-bottom: 0;
303 min-height: ($line-height-computed + $font-size-base);
304
305 &.input-lg,
306 &.input-sm {
307 padding-left: 0;
308 padding-right: 0;
309 }
310}
311
312// Form control sizing
313//
314// Build on `.form-control` with modifier classes to decrease or increase the
315// height and font-size of form controls.
316//
317// The `.form-group-* form-control` variations are sadly duplicated to avoid the
318// issue documented in https://github.com/twbs/bootstrap/issues/15074.
319
320@include input-size('.input-sm', $input-height-small, $padding-small-vertical, $padding-small-horizontal, $font-size-small, $line-height-small, $input-border-radius-small);
321.form-group-sm {
322 .form-control {
323 height: $input-height-small;
324 padding: $padding-small-vertical $padding-small-horizontal;
325 font-size: $font-size-small;
326 line-height: $line-height-small;
327 border-radius: $input-border-radius-small;
328 }
329 select.form-control {
330 height: $input-height-small;
331 line-height: $input-height-small;
332 }
333 textarea.form-control,
334 select[multiple].form-control {
335 height: auto;
336 }
337 .form-control-static {
338 height: $input-height-small;
339 min-height: ($line-height-computed + $font-size-small);
340 padding: ($padding-small-vertical + 1) $padding-small-horizontal;
341 font-size: $font-size-small;
342 line-height: $line-height-small;
343 }
344}
345
346@include input-size('.input-lg', $input-height-large, $padding-large-vertical, $padding-large-horizontal, $font-size-large, $line-height-large, $input-border-radius-large);
347.form-group-lg {
348 .form-control {
349 height: $input-height-large;
350 padding: $padding-large-vertical $padding-large-horizontal;
351 font-size: $font-size-large;
352 line-height: $line-height-large;
353 border-radius: $input-border-radius-large;
354 }
355 select.form-control {
356 height: $input-height-large;
357 line-height: $input-height-large;
358 }
359 textarea.form-control,
360 select[multiple].form-control {
361 height: auto;
362 }
363 .form-control-static {
364 height: $input-height-large;
365 min-height: ($line-height-computed + $font-size-large);
366 padding: ($padding-large-vertical + 1) $padding-large-horizontal;
367 font-size: $font-size-large;
368 line-height: $line-height-large;
369 }
370}
371
372// Form control feedback states
373//
374// Apply contextual and semantic states to individual form controls.
375
376.has-feedback {
377 // Enable absolute positioning
378 position: relative;
379
380 // Ensure icons don't overlap text
381 .form-control {
382 padding-right: ($input-height-base * 1.25);
383 }
384}
385
386// Feedback icon (requires .glyphicon classes)
387.form-control-feedback {
388 position: absolute;
389 top: 0;
390 right: 0;
391 z-index: 2; // Ensure icon is above input groups
392 display: block;
393 width: $input-height-base;
394 height: $input-height-base;
395 line-height: $input-height-base;
396 text-align: center;
397 pointer-events: none;
398}
399
400.input-lg + .form-control-feedback,
401.input-group-lg + .form-control-feedback,
402.form-group-lg .form-control + .form-control-feedback {
403 width: $input-height-large;
404 height: $input-height-large;
405 line-height: $input-height-large;
406}
407
408.input-sm + .form-control-feedback,
409.input-group-sm + .form-control-feedback,
410.form-group-sm .form-control + .form-control-feedback {
411 width: $input-height-small;
412 height: $input-height-small;
413 line-height: $input-height-small;
414}
415
416// Feedback states
417.has-success {
418 @include form-control-validation($state-success-text, $state-success-text, $state-success-bg);
419}
420
421.has-warning {
422 @include form-control-validation($state-warning-text, $state-warning-text, $state-warning-bg);
423}
424
425.has-error {
426 @include form-control-validation($state-danger-text, $state-danger-text, $state-danger-bg);
427}
428
429// Reposition feedback icon if input has visible label above
430.has-feedback label {
431
432 & ~ .form-control-feedback {
433 top: ($line-height-computed + 5); // Height of the `label` and its margin
434 }
435 &.sr-only ~ .form-control-feedback {
436 top: 0;
437 }
438}
439
440// Help text
441//
442// Apply to any element you wish to create light text for placement immediately
443// below a form control. Use for general help, formatting, or instructional text.
444
445.help-block {
446 display: block; // account for any element using help-block
447 margin-top: 5px;
448 margin-bottom: 10px;
449 color: lighten($text-color, 25%); // lighten the text some for contrast
450}
451
452// Inline forms
453//
454// Make forms appear inline(-block) by adding the `.form-inline` class. Inline
455// forms begin stacked on extra small (mobile) devices and then go inline when
456// viewports reach <768px.
457//
458// Requires wrapping inputs and labels with `.form-group` for proper display of
459// default HTML form controls and our custom form controls (e.g., input groups).
460//
461// Heads up! This is mixin-ed into `.navbar-form` in navbars.less.
462
463// [converter] extracted from `.form-inline` for libsass compatibility
464@mixin form-inline {
465
466 // Kick in the inline
467 @media (min-width: $screen-sm-min) {
468 // Inline-block all the things for "inline"
469 .form-group {
470 display: inline-block;
471 margin-bottom: 0;
472 vertical-align: middle;
473 }
474
475 // In navbar-form, allow folks to *not* use `.form-group`
476 .form-control {
477 display: inline-block;
478 width: auto; // Prevent labels from stacking above inputs in `.form-group`
479 vertical-align: middle;
480 }
481
482 // Make static controls behave like regular ones
483 .form-control-static {
484 display: inline-block;
485 }
486
487 .input-group {
488 display: inline-table;
489 vertical-align: middle;
490
491 .input-group-addon,
492 .input-group-btn,
493 .form-control {
494 width: auto;
495 }
496 }
497
498 // Input groups need that 100% width though
499 .input-group > .form-control {
500 width: 100%;
501 }
502
503 .control-label {
504 margin-bottom: 0;
505 vertical-align: middle;
506 }
507
508 // Remove default margin on radios/checkboxes that were used for stacking, and
509 // then undo the floating of radios and checkboxes to match.
510 .radio,
511 .checkbox {
512 display: inline-block;
513 margin-top: 0;
514 margin-bottom: 0;
515 vertical-align: middle;
516
517 label {
518 padding-left: 0;
519 }
520 }
521 .radio input[type="radio"],
522 .checkbox input[type="checkbox"] {
523 position: relative;
524 margin-left: 0;
525 }
526
527 // Re-override the feedback icon.
528 .has-feedback .form-control-feedback {
529 top: 0;
530 }
531 }
532}
533
534// [converter] extracted as `@mixin form-inline` for libsass compatibility
535.form-inline {
536 @include form-inline;
537}
538
539// Horizontal forms
540//
541// Horizontal forms are built on grid classes and allow you to create forms with
542// labels on the left and inputs on the right.
543
544.form-horizontal {
545
546 // Consistent vertical alignment of radios and checkboxes
547 //
548 // Labels also get some reset styles, but that is scoped to a media query below.
549 .radio,
550 .checkbox,
551 .radio-inline,
552 .checkbox-inline {
553 margin-top: 0;
554 margin-bottom: 0;
555 padding-top: ($padding-base-vertical + 1); // Default padding plus a border
556 }
557 // Account for padding we're adding to ensure the alignment and of help text
558 // and other content below items
559 .radio,
560 .checkbox {
561 min-height: ($line-height-computed + ($padding-base-vertical + 1));
562 }
563
564 // Make form groups behave like rows
565 .form-group {
566 @include make-row;
567 }
568
569 // Reset spacing and right align labels, but scope to media queries so that
570 // labels on narrow viewports stack the same as a default form example.
571 @media (min-width: $screen-sm-min) {
572 .control-label {
573 text-align: right;
574 margin-bottom: 0;
575 padding-top: ($padding-base-vertical + 1); // Default padding plus a border
576 }
577 }
578
579 // Validation states
580 //
581 // Reposition the icon because it's now within a grid column and columns have
582 // `position: relative;` on them. Also accounts for the grid gutter padding.
583 .has-feedback .form-control-feedback {
584 right: floor(($grid-gutter-width / 2));
585 }
586
587 // Form group sizes
588 //
589 // Quick utility class for applying `.input-lg` and `.input-sm` styles to the
590 // inputs and labels within a `.form-group`.
591 .form-group-lg {
592 @media (min-width: $screen-sm-min) {
593 .control-label {
594 padding-top: (($padding-large-vertical * $line-height-large) + 1);
595 font-size: $font-size-large;
596 }
597 }
598 }
599 .form-group-sm {
600 @media (min-width: $screen-sm-min) {
601 .control-label {
602 padding-top: ($padding-small-vertical + 1);
603 font-size: $font-size-small;
604 }
605 }
606 }
607}