Buttuni
Uża l-istili tal-buttuni tad-dwana ta 'Bootstrap għal azzjonijiet f'forom, dialogs, u aktar b'appoġġ għal daqsijiet multipli, stati, u aktar.
Eżempji
Bootstrap jinkludi diversi stili ta 'buttuni predefiniti, kull wieħed iservi l-iskop semantiku tiegħu stess, bi ftit ekstras jintefgħu għal aktar kontroll.
<button type="button" class="btn btn-primary">Primary</button>
<button type="button" class="btn btn-secondary">Secondary</button>
<button type="button" class="btn btn-success">Success</button>
<button type="button" class="btn btn-danger">Danger</button>
<button type="button" class="btn btn-warning">Warning</button>
<button type="button" class="btn btn-info">Info</button>
<button type="button" class="btn btn-light">Light</button>
<button type="button" class="btn btn-dark">Dark</button>
<button type="button" class="btn btn-link">Link</button>
Twassal tifsira għal teknoloġiji ta' assistenza
L-użu tal-kulur biex iżżid it-tifsira jipprovdi biss indikazzjoni viżwali, li mhux se tiġi mgħoddija lill-utenti ta 'teknoloġiji ta' assistenza - bħal screen readers. Kun żgur li l-informazzjoni indikata bil-kulur hija jew ovvja mill-kontenut innifsu (eż. it-test viżibbli), jew tkun inkluża permezz ta' mezzi alternattivi, bħal test addizzjonali moħbi mal- .visually-hidden
klassi.
Iddiżattiva t-tgeżwir tat-test
Jekk ma tridx li t-test tal-buttuna jkebbeb, tista 'żżid il- .text-nowrap
klassi mal-buttuna. F'Sass, tista 'tissettja $btn-white-space: nowrap
li tiddiżattiva t-tgeżwir tat-test għal kull buttuna.
Tikketti tal-buttuni
Il- .btn
klassijiet huma ddisinjati biex jintużaw mal- <button>
element. Madankollu, tista 'wkoll tuża dawn il-klassijiet fuq <a>
jew <input>
elementi (għalkemm xi browsers jistgħu japplikaw rendering kemmxejn differenti).
Meta jintużaw klassijiet ta’ buttuna fuq <a>
elementi li jintużaw biex iqanqlu l-funzjonalità fil-paġna (bħal kontenut li jiġġarraf), aktar milli jgħaqqdu ma’ paġni jew sezzjonijiet ġodda fil-paġna attwali, dawn ir-rabtiet għandhom jingħataw role="button"
biex iwasslu b’mod xieraq l-iskop tagħhom għal teknoloġiji ta’ assistenza bħal qarrejja tal-iskrin.
<a class="btn btn-primary" href="#" role="button">Link</a>
<button class="btn btn-primary" type="submit">Button</button>
<input class="btn btn-primary" type="button" value="Input">
<input class="btn btn-primary" type="submit" value="Submit">
<input class="btn btn-primary" type="reset" value="Reset">
Outline buttuni
Fil-bżonn ta 'buttuna, iżda mhux il-kuluri ta' l-isfond hefty li jġibu? Ibdel il-klassijiet tal-modifikatur default b'dawk .btn-outline-*
biex tneħħi l-immaġini u l-kuluri kollha fl-isfond fuq kwalunkwe buttuna.
<button type="button" class="btn btn-outline-primary">Primary</button>
<button type="button" class="btn btn-outline-secondary">Secondary</button>
<button type="button" class="btn btn-outline-success">Success</button>
<button type="button" class="btn btn-outline-danger">Danger</button>
<button type="button" class="btn btn-outline-warning">Warning</button>
<button type="button" class="btn btn-outline-info">Info</button>
<button type="button" class="btn btn-outline-light">Light</button>
<button type="button" class="btn btn-outline-dark">Dark</button>
Daqsijiet
Fancy buttuni akbar jew iżgħar? Żid .btn-lg
jew .btn-sm
għal daqsijiet addizzjonali.
<button type="button" class="btn btn-primary btn-lg">Large button</button>
<button type="button" class="btn btn-secondary btn-lg">Large button</button>
<button type="button" class="btn btn-primary btn-sm">Small button</button>
<button type="button" class="btn btn-secondary btn-sm">Small button</button>
Tista 'anki tirrombla d-daqs personalizzat tiegħek b'varjabbli CSS:
<button type="button" class="btn btn-primary"
style="--bs-btn-padding-y: .25rem; --bs-btn-padding-x: .5rem; --bs-btn-font-size: .75rem;">
Custom button
</button>
Stat b'diżabilità
Agħmel il-buttuni jidhru inattivi billi żżid l- disabled
attribut boolean ma' kwalunkwe <button>
element. Buttuni b'diżabbiltà pointer-events: none
applikaw għal, li jipprevjenu l-iskadenza tal-warr u l-istati attivi milli jibdew.
<button type="button" class="btn btn-primary" disabled>Primary button</button>
<button type="button" class="btn btn-secondary" disabled>Button</button>
<button type="button" class="btn btn-outline-primary" disabled>Primary button</button>
<button type="button" class="btn btn-outline-secondary" disabled>Button</button>
Buttuni b'diżabilità li jużaw l- <a>
element jaġixxu daqsxejn differenti:
<a>
s ma jappoġġjawx l-disabled
attribut, għalhekk trid iżżid il-.disabled
klassi biex tagħmilha tidher b'diżabilità viżwalment.- Xi stili favur il-futur huma inklużi biex jiskonnettjaw il
pointer-events
-buttuni tal-ankra kollha. - L- użu ta' buttuni b'diżabilità
<a>
għandu jinkludi l-aria-disabled="true"
attribut li jindika l-istat tal-element għat-teknoloġiji ta' assistenza. - L- użu ta' buttuni b'diżabilità
<a>
m'għandux jinkludi l-href
attribut.
<a class="btn btn-primary disabled" role="button" aria-disabled="true">Primary link</a>
<a class="btn btn-secondary disabled" role="button" aria-disabled="true">Link</a>
Twissija dwar il-funzjonalità tal-link
Biex tkopri każijiet fejn għandek iżżomm l- href
attribut fuq link diżabbli, il- .disabled
klassi tuża pointer-events: none
biex tipprova tiddiżattiva l-funzjonalità tal-link ta ' <a>
s. Innota li din il-proprjetà CSS għadha mhix standardizzata għall-HTML, iżda l-browsers moderni kollha jappoġġjawha. Barra minn hekk, anke fil-browsers li jappoġġjaw pointer-events: none
, in-navigazzjoni bit-tastiera tibqa' mhux affettwata, li jfisser li l-utenti tat-tastiera b'vista u l-utenti ta' teknoloġiji ta' assistenza xorta jkunu jistgħu jattivaw dawn il-links. Allura biex tkun sigura, minbarra aria-disabled="true"
, tinkludi wkoll tabindex="-1"
attribut fuq dawn il-links biex ma tħallihomx jirċievu fokus fuq it-tastiera, u uża JavaScript personalizzat biex tiddiżattiva l-funzjonalità tagħhom għal kollox.
<a href="#" class="btn btn-primary disabled" tabindex="-1" role="button" aria-disabled="true">Primary link</a>
<a href="#" class="btn btn-secondary disabled" tabindex="-1" role="button" aria-disabled="true">Link</a>
Blokk buttuni
Oħloq munzelli li jirrispondu ta 'wisa' sħiħ, "buttuni tal-blokk" bħal dawk f'Bootstrap 4 b'taħlita tal-wiri u l-utilitajiet tal-vojt tagħna. Billi nużaw utilitajiet minflok klassijiet speċifiċi tal-buttuni, għandna kontroll ħafna akbar fuq l-ispazjar, l-allinjament u l-imġieba reattivi.
<div class="d-grid gap-2">
<button class="btn btn-primary" type="button">Button</button>
<button class="btn btn-primary" type="button">Button</button>
</div>
Hawnhekk noħolqu varjazzjoni li tirreaġixxi, li nibda b'buttuni f'munzelli vertikalment sal- punt ta ' md
waqfien, fejn .d-md-block
jissostitwixxi l- .d-grid
klassi, u b'hekk tinnulla l- gap-2
utilità. Id-daqs tal-browser tiegħek biex tarahom jinbidlu.
<div class="d-grid gap-2 d-md-block">
<button class="btn btn-primary" type="button">Button</button>
<button class="btn btn-primary" type="button">Button</button>
</div>
Tista 'taġġusta l-wisa' tal-buttuni tal-blokk tiegħek bi klassijiet tal-wisa 'tal-kolonna tal-grilja. Pereżempju, għal "buttuna ta 'blokk" ta' nofs wisa ', uża .col-6
. Iċentraha orizzontalment b' .mx-auto
, ukoll.
<div class="d-grid gap-2 col-6 mx-auto">
<button class="btn btn-primary" type="button">Button</button>
<button class="btn btn-primary" type="button">Button</button>
</div>
Jistgħu jintużaw utilitajiet addizzjonali biex jaġġustaw l-allinjament tal-buttuni meta jkunu orizzontali. Hawnhekk ħadna l-eżempju ta 'rispons preċedenti tagħna u żidna xi utilitajiet flex u utilità tal-marġni fuq il-buttuna biex tallinja l-buttuni tal-lemin meta ma jibqgħux f'munzelli.
<div class="d-grid gap-2 d-md-flex justify-content-md-end">
<button class="btn btn-primary me-md-2" type="button">Button</button>
<button class="btn btn-primary" type="button">Button</button>
</div>
Plugin tal-buttuna
Il-plugin tal-buttuna jippermettilek li toħloq buttuni ta' toggle on/off sempliċi.
Toggle stati
Żid data-bs-toggle="button"
biex taqleb l-istat tal-buttuna active
. Jekk qed taqleb buttuna minn qabel, trid iżżid il- .active
klassi manwalment u aria-pressed="true"
biex tiżgura li titwassal b'mod xieraq għat-teknoloġiji ta' assistenza.
<button type="button" class="btn btn-primary" data-bs-toggle="button">Toggle button</button>
<button type="button" class="btn btn-primary active" data-bs-toggle="button" aria-pressed="true">Active toggle button</button>
<button type="button" class="btn btn-primary" disabled data-bs-toggle="button">Disabled toggle button</button>
<a href="#" class="btn btn-primary" role="button" data-bs-toggle="button">Toggle link</a>
<a href="#" class="btn btn-primary active" role="button" data-bs-toggle="button" aria-pressed="true">Active toggle link</a>
<a class="btn btn-primary disabled" aria-disabled="true" role="button" data-bs-toggle="button">Disabled toggle link</a>
Metodi
Tista 'toħloq eżempju tal-buttuna bil-kostruttur tal-buttuna, pereżempju:
const bsButton = new bootstrap.Button('#myButton')
Metodu | Deskrizzjoni |
---|---|
dispose |
Jeqred buttuna ta' element. (Tneħħi d-dejta maħżuna fuq l-element DOM) |
getInstance |
Metodu statiku li jippermettilek li tikseb l-istanza tal-buttuna assoċjata ma 'element DOM, tista' tużaha bħal din: bootstrap.Button.getInstance(element) . |
getOrCreateInstance |
Metodu statiku li jirritorna istanza ta' buttuna assoċjata ma' element DOM jew toħloq waħda ġdida f'każ li ma kinitx inizjalizzata. Tista' tużah bħal dan: bootstrap.Button.getOrCreateInstance(element) . |
toggle |
Toggles push state. Jagħti lill-buttuna id-dehra li ġiet attivata. |
Per eżempju, biex taqleb il-buttuni kollha
document.querySelectorAll('.btn').forEach(buttonElement => {
const button = bootstrap.Button.getOrCreateInstance(buttonElement)
button.toggle()
})
CSS
Varjabbli
Miżjud fi v5.2.0Bħala parti mill-approċċ tal-varjabbli tas-CSS li qed jevolvu ta' Bootstrap, il-buttuni issa jużaw varjabbli tas-CSS lokali .btn
għall-adattament imtejjeb f'ħin reali. Il-valuri għall-varjabbli CSS huma stabbiliti permezz ta 'Sass, għalhekk il-personalizzazzjoni ta' Sass għadha appoġġjata wkoll.
--#{$prefix}btn-padding-x: #{$btn-padding-x};
--#{$prefix}btn-padding-y: #{$btn-padding-y};
--#{$prefix}btn-font-family: #{$btn-font-family};
@include rfs($btn-font-size, --#{$prefix}btn-font-size);
--#{$prefix}btn-font-weight: #{$btn-font-weight};
--#{$prefix}btn-line-height: #{$btn-line-height};
--#{$prefix}btn-color: #{$body-color};
--#{$prefix}btn-bg: transparent;
--#{$prefix}btn-border-width: #{$btn-border-width};
--#{$prefix}btn-border-color: transparent;
--#{$prefix}btn-border-radius: #{$btn-border-radius};
--#{$prefix}btn-hover-border-color: transparent;
--#{$prefix}btn-box-shadow: #{$btn-box-shadow};
--#{$prefix}btn-disabled-opacity: #{$btn-disabled-opacity};
--#{$prefix}btn-focus-box-shadow: 0 0 0 #{$btn-focus-width} rgba(var(--#{$prefix}btn-focus-shadow-rgb), .5);
Kull .btn-*
klassi ta 'modifikatur taġġorna l-varjabbli CSS xierqa biex timminimizza regoli CSS addizzjonali ma' tagħna button-variant()
, button-outline-variant()
, u button-size()
mixins.
Hawn eżempju ta 'bini ta' .btn-*
klassi modifikatur tad-dwana bħalma nagħmlu għall-buttuni uniċi għad-doks tagħna billi nassenjaw mill-ġdid il-varjabbli CSS ta 'Bootstrap b'taħlita ta' varjabbli CSS u Sass tagħna stess.
.btn-bd-primary {
--bs-btn-font-weight: 600;
--bs-btn-color: var(--bs-white);
--bs-btn-bg: var(--bd-violet);
--bs-btn-border-color: var(--bd-violet);
--bs-btn-border-radius: .5rem;
--bs-btn-hover-color: var(--bs-white);
--bs-btn-hover-bg: #{shade-color($bd-violet, 10%)};
--bs-btn-hover-border-color: #{shade-color($bd-violet, 10%)};
--bs-btn-focus-shadow-rgb: var(--bd-violet-rgb);
--bs-btn-active-color: var(--bs-btn-hover-color);
--bs-btn-active-bg: #{shade-color($bd-violet, 20%)};
--bs-btn-active-border-color: #{shade-color($bd-violet, 20%)};
}
Sass varjabbli
$btn-padding-y: $input-btn-padding-y;
$btn-padding-x: $input-btn-padding-x;
$btn-font-family: $input-btn-font-family;
$btn-font-size: $input-btn-font-size;
$btn-line-height: $input-btn-line-height;
$btn-white-space: null; // Set to `nowrap` to prevent text wrapping
$btn-padding-y-sm: $input-btn-padding-y-sm;
$btn-padding-x-sm: $input-btn-padding-x-sm;
$btn-font-size-sm: $input-btn-font-size-sm;
$btn-padding-y-lg: $input-btn-padding-y-lg;
$btn-padding-x-lg: $input-btn-padding-x-lg;
$btn-font-size-lg: $input-btn-font-size-lg;
$btn-border-width: $input-btn-border-width;
$btn-font-weight: $font-weight-normal;
$btn-box-shadow: inset 0 1px 0 rgba($white, .15), 0 1px 1px rgba($black, .075);
$btn-focus-width: $input-btn-focus-width;
$btn-focus-box-shadow: $input-btn-focus-box-shadow;
$btn-disabled-opacity: .65;
$btn-active-box-shadow: inset 0 3px 5px rgba($black, .125);
$btn-link-color: var(--#{$prefix}link-color);
$btn-link-hover-color: var(--#{$prefix}link-hover-color);
$btn-link-disabled-color: $gray-600;
// Allows for customizing button radius independently from global border radius
$btn-border-radius: $border-radius;
$btn-border-radius-sm: $border-radius-sm;
$btn-border-radius-lg: $border-radius-lg;
$btn-transition: color .15s ease-in-out, background-color .15s ease-in-out, border-color .15s ease-in-out, box-shadow .15s ease-in-out;
$btn-hover-bg-shade-amount: 15%;
$btn-hover-bg-tint-amount: 15%;
$btn-hover-border-shade-amount: 20%;
$btn-hover-border-tint-amount: 10%;
$btn-active-bg-shade-amount: 20%;
$btn-active-bg-tint-amount: 20%;
$btn-active-border-shade-amount: 25%;
$btn-active-border-tint-amount: 10%;
Sass mixins
Hemm tliet mixins għall-buttuni: mixins tal-varjanti tal-kontorn tal-buttuna u tal-buttuna (it-tnejn ibbażati fuq $theme-colors
), flimkien ma 'mixin tad-daqs tal-buttuna.
@mixin button-variant(
$background,
$border,
$color: color-contrast($background),
$hover-background: if($color == $color-contrast-light, shade-color($background, $btn-hover-bg-shade-amount), tint-color($background, $btn-hover-bg-tint-amount)),
$hover-border: if($color == $color-contrast-light, shade-color($border, $btn-hover-border-shade-amount), tint-color($border, $btn-hover-border-tint-amount)),
$hover-color: color-contrast($hover-background),
$active-background: if($color == $color-contrast-light, shade-color($background, $btn-active-bg-shade-amount), tint-color($background, $btn-active-bg-tint-amount)),
$active-border: if($color == $color-contrast-light, shade-color($border, $btn-active-border-shade-amount), tint-color($border, $btn-active-border-tint-amount)),
$active-color: color-contrast($active-background),
$disabled-background: $background,
$disabled-border: $border,
$disabled-color: color-contrast($disabled-background)
) {
--#{$prefix}btn-color: #{$color};
--#{$prefix}btn-bg: #{$background};
--#{$prefix}btn-border-color: #{$border};
--#{$prefix}btn-hover-color: #{$hover-color};
--#{$prefix}btn-hover-bg: #{$hover-background};
--#{$prefix}btn-hover-border-color: #{$hover-border};
--#{$prefix}btn-focus-shadow-rgb: #{to-rgb(mix($color, $border, 15%))};
--#{$prefix}btn-active-color: #{$active-color};
--#{$prefix}btn-active-bg: #{$active-background};
--#{$prefix}btn-active-border-color: #{$active-border};
--#{$prefix}btn-active-shadow: #{$btn-active-box-shadow};
--#{$prefix}btn-disabled-color: #{$disabled-color};
--#{$prefix}btn-disabled-bg: #{$disabled-background};
--#{$prefix}btn-disabled-border-color: #{$disabled-border};
}
@mixin button-outline-variant(
$color,
$color-hover: color-contrast($color),
$active-background: $color,
$active-border: $color,
$active-color: color-contrast($active-background)
) {
--#{$prefix}btn-color: #{$color};
--#{$prefix}btn-border-color: #{$color};
--#{$prefix}btn-hover-color: #{$color-hover};
--#{$prefix}btn-hover-bg: #{$active-background};
--#{$prefix}btn-hover-border-color: #{$active-border};
--#{$prefix}btn-focus-shadow-rgb: #{to-rgb($color)};
--#{$prefix}btn-active-color: #{$active-color};
--#{$prefix}btn-active-bg: #{$active-background};
--#{$prefix}btn-active-border-color: #{$active-border};
--#{$prefix}btn-active-shadow: #{$btn-active-box-shadow};
--#{$prefix}btn-disabled-color: #{$color};
--#{$prefix}btn-disabled-bg: transparent;
--#{$prefix}btn-disabled-border-color: #{$color};
--#{$prefix}gradient: none;
}
@mixin button-size($padding-y, $padding-x, $font-size, $border-radius) {
--#{$prefix}btn-padding-y: #{$padding-y};
--#{$prefix}btn-padding-x: #{$padding-x};
@include rfs($font-size, --#{$prefix}btn-font-size);
--#{$prefix}btn-border-radius: #{$border-radius};
}
Sass loops
Il-varjanti tal-buttuni (għall-buttuni regolari u tal-kontorn) jużaw il-mixins rispettivi tagħhom mal- $theme-colors
mappa tagħna biex jiġġeneraw il-klassijiet tal-modifikaturi f' scss/_buttons.scss
.
@each $color, $value in $theme-colors {
.btn-#{$color} {
@if $color == "light" {
@include button-variant(
$value,
$value,
$hover-background: shade-color($value, $btn-hover-bg-shade-amount),
$hover-border: shade-color($value, $btn-hover-border-shade-amount),
$active-background: shade-color($value, $btn-active-bg-shade-amount),
$active-border: shade-color($value, $btn-active-border-shade-amount)
);
} @else if $color == "dark" {
@include button-variant(
$value,
$value,
$hover-background: tint-color($value, $btn-hover-bg-tint-amount),
$hover-border: tint-color($value, $btn-hover-border-tint-amount),
$active-background: tint-color($value, $btn-active-bg-tint-amount),
$active-border: tint-color($value, $btn-active-border-tint-amount)
);
} @else {
@include button-variant($value, $value);
}
}
}
@each $color, $value in $theme-colors {
.btn-outline-#{$color} {
@include button-outline-variant($value);
}
}