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 tingħata 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 tal-buttuni fuq <a>
elementi li huma wżati biex jagħtu bidu għal funzjonalità fil-paġna (bħal kontenut li jikkrolla), 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 tal-isfond hefty li jġibu? Ibdel il-klassijiet tal-modifikatur default ma ' .btn-outline-*
dawk 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>
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-lg btn-primary" disabled>Primary button</button>
<button type="button" class="btn btn-secondary btn-lg" 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 btn-lg disabled" role="button" aria-disabled="true">Primary link</a>
<a class="btn btn-secondary btn-lg 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 btn-lg disabled" tabindex="-1" role="button" aria-disabled="true">Primary link</a>
<a href="#" class="btn btn-secondary btn-lg 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.
Aqleb l-istati
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" autocomplete="off">Toggle button</button>
<button type="button" class="btn btn-primary active" data-bs-toggle="button" autocomplete="off" aria-pressed="true">Active toggle button</button>
<button type="button" class="btn btn-primary" disabled data-bs-toggle="button" autocomplete="off">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:
var button = document.getElementById('myButton')
var bsButton = new bootstrap.Button(button)
Metodu | Deskrizzjoni |
---|---|
toggle |
Toggles push state. Jagħti lill-buttuna id-dehra li ġiet attivata. |
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) |
Per eżempju, biex taqleb il-buttuni kollha
var buttons = document.querySelectorAll('.btn')
buttons.forEach(function (button) {
var button = new bootstrap.Button(button)
button.toggle()
})
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: $link-color;
$btn-link-hover-color: $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%;
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)
) {
color: $color;
@include gradient-bg($background);
border-color: $border;
@include box-shadow($btn-box-shadow);
&:hover {
color: $hover-color;
@include gradient-bg($hover-background);
border-color: $hover-border;
}
.btn-check:focus + &,
&:focus {
color: $hover-color;
@include gradient-bg($hover-background);
border-color: $hover-border;
@if $enable-shadows {
@include box-shadow($btn-box-shadow, 0 0 0 $btn-focus-width rgba(mix($color, $border, 15%), .5));
} @else {
// Avoid using mixin so we can pass custom focus shadow properly
box-shadow: 0 0 0 $btn-focus-width rgba(mix($color, $border, 15%), .5);
}
}
.btn-check:checked + &,
.btn-check:active + &,
&:active,
&.active,
.show > &.dropdown-toggle {
color: $active-color;
background-color: $active-background;
// Remove CSS gradients if they're enabled
background-image: if($enable-gradients, none, null);
border-color: $active-border;
&:focus {
@if $enable-shadows {
@include box-shadow($btn-active-box-shadow, 0 0 0 $btn-focus-width rgba(mix($color, $border, 15%), .5));
} @else {
// Avoid using mixin so we can pass custom focus shadow properly
box-shadow: 0 0 0 $btn-focus-width rgba(mix($color, $border, 15%), .5);
}
}
}
&:disabled,
&.disabled {
color: $disabled-color;
background-color: $disabled-background;
// Remove CSS gradients if they're enabled
background-image: if($enable-gradients, none, null);
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)
) {
color: $color;
border-color: $color;
&:hover {
color: $color-hover;
background-color: $active-background;
border-color: $active-border;
}
.btn-check:focus + &,
&:focus {
box-shadow: 0 0 0 $btn-focus-width rgba($color, .5);
}
.btn-check:checked + &,
.btn-check:active + &,
&:active,
&.active,
&.dropdown-toggle.show {
color: $active-color;
background-color: $active-background;
border-color: $active-border;
&:focus {
@if $enable-shadows {
@include box-shadow($btn-active-box-shadow, 0 0 0 $btn-focus-width rgba($color, .5));
} @else {
// Avoid using mixin so we can pass custom focus shadow properly
box-shadow: 0 0 0 $btn-focus-width rgba($color, .5);
}
}
}
&:disabled,
&.disabled {
color: $color;
background-color: transparent;
}
}
@mixin button-size($padding-y, $padding-x, $font-size, $border-radius) {
padding: $padding-y $padding-x;
@include font-size($font-size);
// Manually declare to provide an override to the browser default
@include border-radius($border-radius, 0);
}
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} {
@include button-variant($value, $value);
}
}
@each $color, $value in $theme-colors {
.btn-outline-#{$color} {
@include button-outline-variant($value);
}
}