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Diffstat (limited to 'bootstrap/less/forms.less')
| -rwxr-xr-x | bootstrap/less/forms.less | 605 |
1 files changed, 605 insertions, 0 deletions
diff --git a/bootstrap/less/forms.less b/bootstrap/less/forms.less new file mode 100755 index 0000000..edf19bf --- /dev/null +++ b/bootstrap/less/forms.less @@ -0,0 +1,605 @@ +// stylelint-disable selector-no-qualifying-type, property-no-vendor-prefix, media-feature-name-no-vendor-prefix + +// +// Forms +// -------------------------------------------------- + + +// Normalize non-controls +// +// Restyle and baseline non-control form elements. + +fieldset { + // Chrome and Firefox set a `min-width: min-content;` on fieldsets, + // so we reset that to ensure it behaves more like a standard block element. + // See https://github.com/twbs/bootstrap/issues/12359. + min-width: 0; + padding: 0; + margin: 0; + border: 0; +} + +legend { + display: block; + width: 100%; + padding: 0; + margin-bottom: @line-height-computed; + font-size: (@font-size-base * 1.5); + line-height: inherit; + color: @legend-color; + border: 0; + border-bottom: 1px solid @legend-border-color; +} + +label { + display: inline-block; + max-width: 100%; // Force IE8 to wrap long content (see https://github.com/twbs/bootstrap/issues/13141) + margin-bottom: 5px; + font-weight: 700; +} + + +// Normalize form controls +// +// While most of our form styles require extra classes, some basic normalization +// is required to ensure optimum display with or without those classes to better +// address browser inconsistencies. + +input[type="search"] { + // Override content-box in Normalize (* isn't specific enough) + .box-sizing(border-box); + + // Search inputs in iOS + // + // This overrides the extra rounded corners on search inputs in iOS so that our + // `.form-control` class can properly style them. Note that this cannot simply + // be added to `.form-control` as it's not specific enough. For details, see + // https://github.com/twbs/bootstrap/issues/11586. + -webkit-appearance: none; + appearance: none; +} + +// Position radios and checkboxes better +input[type="radio"], +input[type="checkbox"] { + margin: 4px 0 0; + margin-top: 1px \9; // IE8-9 + line-height: normal; + + // Apply same disabled cursor tweak as for inputs + // Some special care is needed because <label>s don't inherit their parent's `cursor`. + // + // Note: Neither radios nor checkboxes can be readonly. + &[disabled], + &.disabled, + fieldset[disabled] & { + cursor: @cursor-disabled; + } +} + +input[type="file"] { + display: block; +} + +// Make range inputs behave like textual form controls +input[type="range"] { + display: block; + width: 100%; +} + +// Make multiple select elements height not fixed +select[multiple], +select[size] { + height: auto; +} + +// Focus for file, radio, and checkbox +input[type="file"]:focus, +input[type="radio"]:focus, +input[type="checkbox"]:focus { + .tab-focus(); +} + +// Adjust output element +output { + display: block; + padding-top: (@padding-base-vertical + 1); + font-size: @font-size-base; + line-height: @line-height-base; + color: @input-color; +} + + +// Common form controls +// +// Shared size and type resets for form controls. Apply `.form-control` to any +// of the following form controls: +// +// select +// textarea +// input[type="text"] +// input[type="password"] +// input[type="datetime"] +// input[type="datetime-local"] +// input[type="date"] +// input[type="month"] +// input[type="time"] +// input[type="week"] +// input[type="number"] +// input[type="email"] +// input[type="url"] +// input[type="search"] +// input[type="tel"] +// input[type="color"] + +.form-control { + display: block; + width: 100%; + height: @input-height-base; // Make inputs at least the height of their button counterpart (base line-height + padding + border) + padding: @padding-base-vertical @padding-base-horizontal; + font-size: @font-size-base; + line-height: @line-height-base; + color: @input-color; + background-color: @input-bg; + background-image: none; // Reset unusual Firefox-on-Android default style; see https://github.com/necolas/normalize.css/issues/214 + border: 1px solid @input-border; + 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. + .box-shadow(inset 0 1px 1px rgba(0, 0, 0, .075)); + .transition(~"border-color ease-in-out .15s, box-shadow ease-in-out .15s"); + + // Customize the `:focus` state to imitate native WebKit styles. + .form-control-focus(); + + // Placeholder + .placeholder(); + + // Unstyle the caret on `<select>`s in IE10+. + &::-ms-expand { + background-color: transparent; + border: 0; + } + + // Disabled and read-only inputs + // + // HTML5 says that controls under a fieldset > legend:first-child won't be + // disabled if the fieldset is disabled. Due to implementation difficulty, we + // don't honor that edge case; we style them as disabled anyway. + &[disabled], + &[readonly], + fieldset[disabled] & { + background-color: @input-bg-disabled; + opacity: 1; // iOS fix for unreadable disabled content; see https://github.com/twbs/bootstrap/issues/11655 + } + + &[disabled], + fieldset[disabled] & { + cursor: @cursor-disabled; + } + + // Reset height for `textarea`s + textarea& { + height: auto; + } +} + + +// Special styles for iOS temporal inputs +// +// In Mobile Safari, setting `display: block` on temporal inputs causes the +// text within the input to become vertically misaligned. As a workaround, we +// set a pixel line-height that matches the given height of the input, but only +// for Safari. See https://bugs.webkit.org/show_bug.cgi?id=139848 +// +// Note that as of 9.3, iOS doesn't support `week`. + +@media screen and (-webkit-min-device-pixel-ratio: 0) { + input[type="date"], + input[type="time"], + input[type="datetime-local"], + input[type="month"] { + &.form-control { + line-height: @input-height-base; + } + + &.input-sm, + .input-group-sm & { + line-height: @input-height-small; + } + + &.input-lg, + .input-group-lg & { + line-height: @input-height-large; + } + } +} + + +// Form groups +// +// Designed to help with the organization and spacing of vertical forms. For +// horizontal forms, use the predefined grid classes. + +.form-group { + margin-bottom: @form-group-margin-bottom; +} + + +// Checkboxes and radios +// +// Indent the labels to position radios/checkboxes as hanging controls. + +.radio, +.checkbox { + position: relative; + display: block; + margin-top: 10px; + margin-bottom: 10px; + + // These are used on elements with <label> descendants + &.disabled, + fieldset[disabled] & { + label { + cursor: @cursor-disabled; + } + } + + label { + min-height: @line-height-computed; // Ensure the input doesn't jump when there is no text + padding-left: 20px; + margin-bottom: 0; + font-weight: 400; + cursor: pointer; + } +} +.radio input[type="radio"], +.radio-inline input[type="radio"], +.checkbox input[type="checkbox"], +.checkbox-inline input[type="checkbox"] { + position: absolute; + margin-top: 4px \9; + margin-left: -20px; +} + +.radio + .radio, +.checkbox + .checkbox { + margin-top: -5px; // Move up sibling radios or checkboxes for tighter spacing +} + +// Radios and checkboxes on same line +.radio-inline, +.checkbox-inline { + position: relative; + display: inline-block; + padding-left: 20px; + margin-bottom: 0; + font-weight: 400; + vertical-align: middle; + cursor: pointer; + + // These are used directly on <label>s + &.disabled, + fieldset[disabled] & { + cursor: @cursor-disabled; + } +} +.radio-inline + .radio-inline, +.checkbox-inline + .checkbox-inline { + margin-top: 0; + margin-left: 10px; // space out consecutive inline controls +} + + +// Static form control text +// +// Apply class to a `p` element to make any string of text align with labels in +// a horizontal form layout. + +.form-control-static { + min-height: (@line-height-computed + @font-size-base); + // Size it appropriately next to real form controls + padding-top: (@padding-base-vertical + 1); + padding-bottom: (@padding-base-vertical + 1); + // Remove default margin from `p` + margin-bottom: 0; + + &.input-lg, + &.input-sm { + padding-right: 0; + padding-left: 0; + } +} + + +// Form control sizing +// +// Build on `.form-control` with modifier classes to decrease or increase the +// height and font-size of form controls. +// +// The `.form-group-* form-control` variations are sadly duplicated to avoid the +// issue documented in https://github.com/twbs/bootstrap/issues/15074. + +.input-sm { + .input-size(@input-height-small; @padding-small-vertical; @padding-small-horizontal; @font-size-small; @line-height-small; @input-border-radius-small); +} +.form-group-sm { + .form-control { + height: @input-height-small; + padding: @padding-small-vertical @padding-small-horizontal; + font-size: @font-size-small; + line-height: @line-height-small; + border-radius: @input-border-radius-small; + } + select.form-control { + height: @input-height-small; + line-height: @input-height-small; + } + textarea.form-control, + select[multiple].form-control { + height: auto; + } + .form-control-static { + height: @input-height-small; + min-height: (@line-height-computed + @font-size-small); + padding: (@padding-small-vertical + 1) @padding-small-horizontal; + font-size: @font-size-small; + line-height: @line-height-small; + } +} + +.input-lg { + .input-size(@input-height-large; @padding-large-vertical; @padding-large-horizontal; @font-size-large; @line-height-large; @input-border-radius-large); +} +.form-group-lg { + .form-control { + height: @input-height-large; + padding: @padding-large-vertical @padding-large-horizontal; + font-size: @font-size-large; + line-height: @line-height-large; + border-radius: @input-border-radius-large; + } + select.form-control { + height: @input-height-large; + line-height: @input-height-large; + } + textarea.form-control, + select[multiple].form-control { + height: auto; + } + .form-control-static { + height: @input-height-large; + min-height: (@line-height-computed + @font-size-large); + padding: (@padding-large-vertical + 1) @padding-large-horizontal; + font-size: @font-size-large; + line-height: @line-height-large; + } +} + + +// Form control feedback states +// +// Apply contextual and semantic states to individual form controls. + +.has-feedback { + // Enable absolute positioning + position: relative; + + // Ensure icons don't overlap text + .form-control { + padding-right: (@input-height-base * 1.25); + } +} +// Feedback icon (requires .glyphicon classes) +.form-control-feedback { + position: absolute; + top: 0; + right: 0; + z-index: 2; // Ensure icon is above input groups + display: block; + width: @input-height-base; + height: @input-height-base; + line-height: @input-height-base; + text-align: center; + pointer-events: none; +} +.input-lg + .form-control-feedback, +.input-group-lg + .form-control-feedback, +.form-group-lg .form-control + .form-control-feedback { + width: @input-height-large; + height: @input-height-large; + line-height: @input-height-large; +} +.input-sm + .form-control-feedback, +.input-group-sm + .form-control-feedback, +.form-group-sm .form-control + .form-control-feedback { + width: @input-height-small; + height: @input-height-small; + line-height: @input-height-small; +} + +// Feedback states +.has-success { + .form-control-validation(@state-success-text; @state-success-text; @state-success-bg); +} +.has-warning { + .form-control-validation(@state-warning-text; @state-warning-text; @state-warning-bg); +} +.has-error { + .form-control-validation(@state-danger-text; @state-danger-text; @state-danger-bg); +} + +// Reposition feedback icon if input has visible label above +.has-feedback label { + + & ~ .form-control-feedback { + top: (@line-height-computed + 5); // Height of the `label` and its margin + } + &.sr-only ~ .form-control-feedback { + top: 0; + } +} + + +// Help text +// +// Apply to any element you wish to create light text for placement immediately +// below a form control. Use for general help, formatting, or instructional text. + +.help-block { + display: block; // account for any element using help-block + margin-top: 5px; + margin-bottom: 10px; + color: lighten(@text-color, 25%); // lighten the text some for contrast +} + + +// Inline forms +// +// Make forms appear inline(-block) by adding the `.form-inline` class. Inline +// forms begin stacked on extra small (mobile) devices and then go inline when +// viewports reach <768px. +// +// Requires wrapping inputs and labels with `.form-group` for proper display of +// default HTML form controls and our custom form controls (e.g., input groups). +// +// Heads up! This is mixin-ed into `.navbar-form` in navbars.less. + +.form-inline { + + // Kick in the inline + @media (min-width: @screen-sm-min) { + // Inline-block all the things for "inline" + .form-group { + display: inline-block; + margin-bottom: 0; + vertical-align: middle; + } + + // In navbar-form, allow folks to *not* use `.form-group` + .form-control { + display: inline-block; + width: auto; // Prevent labels from stacking above inputs in `.form-group` + vertical-align: middle; + } + + // Make static controls behave like regular ones + .form-control-static { + display: inline-block; + } + + .input-group { + display: inline-table; + vertical-align: middle; + + .input-group-addon, + .input-group-btn, + .form-control { + width: auto; + } + } + + // Input groups need that 100% width though + .input-group > .form-control { + width: 100%; + } + + .control-label { + margin-bottom: 0; + vertical-align: middle; + } + + // Remove default margin on radios/checkboxes that were used for stacking, and + // then undo the floating of radios and checkboxes to match. + .radio, + .checkbox { + display: inline-block; + margin-top: 0; + margin-bottom: 0; + vertical-align: middle; + + label { + padding-left: 0; + } + } + .radio input[type="radio"], + .checkbox input[type="checkbox"] { + position: relative; + margin-left: 0; + } + + // Re-override the feedback icon. + .has-feedback .form-control-feedback { + top: 0; + } + } +} + + +// Horizontal forms +// +// Horizontal forms are built on grid classes and allow you to create forms with +// labels on the left and inputs on the right. + +.form-horizontal { + + // Consistent vertical alignment of radios and checkboxes + // + // Labels also get some reset styles, but that is scoped to a media query below. + .radio, + .checkbox, + .radio-inline, + .checkbox-inline { + padding-top: (@padding-base-vertical + 1); // Default padding plus a border + margin-top: 0; + margin-bottom: 0; + } + // Account for padding we're adding to ensure the alignment and of help text + // and other content below items + .radio, + .checkbox { + min-height: (@line-height-computed + (@padding-base-vertical + 1)); + } + + // Make form groups behave like rows + .form-group { + .make-row(); + } + + // Reset spacing and right align labels, but scope to media queries so that + // labels on narrow viewports stack the same as a default form example. + @media (min-width: @screen-sm-min) { + .control-label { + padding-top: (@padding-base-vertical + 1); // Default padding plus a border + margin-bottom: 0; + text-align: right; + } + } + + // Validation states + // + // Reposition the icon because it's now within a grid column and columns have + // `position: relative;` on them. Also accounts for the grid gutter padding. + .has-feedback .form-control-feedback { + right: floor((@grid-gutter-width / 2)); + } + + // Form group sizes + // + // Quick utility class for applying `.input-lg` and `.input-sm` styles to the + // inputs and labels within a `.form-group`. + .form-group-lg { + @media (min-width: @screen-sm-min) { + .control-label { + padding-top: (@padding-large-vertical + 1); + font-size: @font-size-large; + } + } + } + .form-group-sm { + @media (min-width: @screen-sm-min) { + .control-label { + padding-top: (@padding-small-vertical + 1); + font-size: @font-size-small; + } + } + } +} |