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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.

Fuq din il-paġna

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-hiddenklassi.

Iddiżattiva t-tgeżwir tat-test

Jekk ma tridx li t-test tal-buttuna jkebbeb, tista 'żżid il- .text-nowrapklassi mal-buttuna. F'Sass, tista 'tissettja $btn-white-space: nowrapli tiddiżattiva t-tgeżwir tat-test għal kull buttuna.

Tikketti tal-buttuni

Il- .btnklassijiet 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.

Link

<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>

Uħud mill-istili tal-buttuni jużaw kulur ta' tagħrif miksub relattivament ċar, u għandhom jintużaw biss fuq sfond skur sabiex ikun hemm kuntrast suffiċjenti.

Daqsijiet

Fancy buttuni akbar jew iżgħar? Żid .btn-lgjew .btn-smgħal 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- disabledattribut boolean ma' kwalunkwe <button>element. Buttuni b'diżabbiltà pointer-events: noneapplikaw 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- disabledattribut, għalhekk trid iżżid il- .disabledklassi 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- hrefattribut.

Link primarju Link

<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- hrefattribut fuq link diżabbli, il- .disabledklassi tuża pointer-events: nonebiex 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.

Link primarju Link

<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 ' mdwaqfien, fejn .d-md-blockjissostitwixxi l- .d-gridklassi, u b'hekk tinnulla l- gap-2utilità. 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.

Viżwalment, dawn il-buttuni toggle huma identiċi għall- buttuni toggle tal-kaxxa tal-kontroll . Madankollu, huma mibgħuta b'mod differenti minn teknoloġiji ta' assistenza: it-toggles tal-kaxxa ta' kontroll se jitħabbru mill-qarrejja tal-iskrin bħala "iċċekkjati"/"mhux iċċekkjati" (peress li, minkejja d-dehra tagħhom, huma fundamentalment għadhom kaxxi ta' kontroll), filwaqt li dawn il-buttuni ta' toggle se jitħabbru bħala “buttuna”/“buttuna ippressata”. L-għażla bejn dawn iż-żewġ approċċi tiddependi fuq it-tip ta 'toggle li qed toħloq, u jekk it-toggle jagħmilx sens jew le għall-utenti meta mħabbar bħala checkbox jew bħala buttuna attwali.

Aqleb l-istati

Żid data-bs-toggle="button"biex taqleb l-istat tal-buttuna active. Jekk qed taqleb buttuna minn qabel, trid iżżid il- .activeklassi 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>

Toggle link Toggle link attiv Disabled toggle link

<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-colorsmappa 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);
  }
}