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Cnaipí

Bain úsáid as stíleanna cnaipe saincheaptha Bootstrap le haghaidh gníomhartha i bhfoirmeacha, dialóga, agus níos mó le tacaíocht d'ilmhéideanna, stáit agus níos mó.

Ar an leathanach seo

Samplaí

Cuimsíonn Bootstrap roinnt stíleanna cnaipe réamhshainithe, gach ceann ag freastal ar a chuspóir shéimeantach féin, agus roinnt rudaí breise caite isteach le haghaidh níos mó smachta.

<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>

Brí a chur in iúl do theicneolaíochtaí cúnta

Ní thugann úsáid dath chun brí a chur leis ach tásc amhairc, nach gcuirfear in iúl d’úsáideoirí na dteicneolaíochtaí cúnta – mar léitheoirí scáileáin. Cinntigh go bhfuil an t-eolas atá sainaitheanta leis an dath soiléir ón ábhar féin (m.sh. an téacs infheicthe), nó go n-áirítear í ar mhodhanna eile, mar théacs breise i bhfolach leis an .visually-hiddenrang.

Díchumasaigh timfhilleadh téacs

Mura dteastaíonn uait go gclúdódh an téacs cnaipe, is féidir leat an .text-nowraprang a chur leis an gcnaipe. In Sass, is féidir leat $btn-white-space: nowrapfillteáin téacs a dhíchumasú do gach cnaipe a shocrú.

Clibeanna cnaipe

Tá na .btnranganna deartha le húsáid leis an <button>eilimint. Mar sin féin, is féidir leat na ranganna seo a úsáid ar <a>nó <input>eilimintí (cé go bhféadfadh roinnt brabhsálaithe rindreáil beagán difriúil a chur i bhfeidhm).

Agus aicmí cnaipí á n-úsáid ar <a>ghnéithe a úsáidtear chun feidhmiúlacht in-leathanaigh a spreagadh (cosúil le hinneachar a laghdú), seachas nascadh le leathanaigh nó le hailt nua laistigh den leathanach reatha, ba cheart na naisc seo a thabhairt role="button"chun a gcuspóir a chur in iúl go cuí do theicneolaíochtaí cúnta mar léitheoirí scáileáin.

Nasc

<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">

Cnaipí imlíne

Cnaipe de dhíth, ach nach bhfuil na dathanna cúlra mór a thugann siad? Cuir na cinn in ionad na ranganna mionathraithe réamhshocraithe .btn-outline-*chun na híomhánna cúlra agus na dathanna go léir ar aon chnaipe a bhaint.

<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>

Úsáideann cuid de na stíleanna cnaipe dath tulra sách éadrom, agus níor cheart iad a úsáid ach ar chúlra dorcha chun codarsnacht leordhóthanach a bheith acu.

Méideanna

An bhfuil fonn ort cnaipí níos mó nó níos lú? Cuir .btn-lgnó .btn-smle haghaidh méideanna breise.

<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>

Stát faoi mhíchumas

Cuir cuma neamhghníomhach ar chnaipí tríd an disabledtréith Boole a chur le haon <button>eilimint. Cuireadh cnaipí faoi mhíchumas pointer-events: nonei bhfeidhm ar, rud a chuir cosc ar ainlíonn agus stáit ghníomhacha ó threascairt.

<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>

Iompraíonn cnaipí díchumasaithe a úsáideann an <a>eilimint beagán difriúil:

<a>s ní thacaíonn an disabledaitreabúid, mar sin ní mór duit an .disabledrang a chur leis le go mbeidh cuma dhíchumasaithe air.
Tá roinnt stíleanna atá neamhdhíobhálach don todhchaí san áireamh chun gach ceann pointer-eventsar chnaipí ancaire a dhíchumasú.
Ba cheart go n-áireofaí ar chnaipí faoi mhíchumas an aria-disabled="true"tréith chun staid na heiliminte i dteicneolaíochtaí cúnta a léiriú.

Nasc príomhúil Nasc

<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>

caveat feidhmiúlacht naisc

Úsáideann an .disabledrang pointer-events: nonechun iarracht a dhéanamh feidhmiúlacht naisc <a>s a dhíchumasú, ach níl an t-airí CSS sin caighdeánaithe fós. Ina theannta sin, fiú amháin i mbrabhsálaithe a thacaíonn le pointer-events: none, níl aon tionchar fós ar nascleanúint méarchláir, rud a chiallaíonn go mbeidh úsáideoirí méarchláir radharcacha agus úsáideoirí teicneolaíochtaí cúnta fós in ann na naisc seo a ghníomhachtú. Mar sin le bheith sábháilte, chomh maith le aria-disabled="true", tabindex="-1"cuir tréith ar na naisc seo freisin chun iad a chosc ó fhócas méarchláir a fháil, agus úsáid JavaScript saincheaptha chun a bhfeidhmiúlacht a dhíchumasú go hiomlán.

Cnaipí blocála

Cruthaigh stoic sofhreagracha de “chnaipí bloc” lánleithead cosúil leis na cinn i Bootstrap 4 le meascán dár bhfóntais taispeána agus bearna. Trí úsáid a bhaint as fóntais in ionad aicmí cnaipe ar leith, tá smacht i bhfad níos mó againn ar spásáil, ailíniú agus iompraíochtaí sofhreagracha.

<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>

Anseo cruthaímid athrú sofhreagrach, ag tosú le cnaipí atá Cruachta go hingearach go dtí an mdbrisphointe, áit a gcuirtear .d-md-blockan .d-gridrang in ionad, rud a fhágann nach gcuirtear an gap-2fóntais ar ceal. Athraigh do bhrabhsálaí chun iad a athrú.

<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>

Is féidir leat leithead do bhlocchnaipí a choigeartú le haicmí leithead na gcolún greille. Mar shampla, le haghaidh “cnaipe blocála” leathleithead, bain úsáid as .col-6. Lár é go cothrománach le .mx-auto, freisin.

<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>

Is féidir fóntais bhreise a úsáid chun ailíniú na gcnaipí a choigeartú nuair a bhíonn siad cothrománach. Anseo ghlacamar ár sampla sofhreagrach roimhe seo agus chuir muid roinnt fóntais flex agus áirgiúlacht corrlaigh ar an gcnaipe chun na cnaipí a ailíniú ar dheis nuair nach bhfuil siad cruachta a thuilleadh.

<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>

Breiseán cnaipe

Ligeann an breiseán cnaipe duit cnaipí scoránaigh simplí ar/as a chruthú.

Ó thaobh amhairc de, is ionann na cnaipí scoránaigh seo agus na cnaipí scoránaigh ticbhosca . Mar sin féin, cuireann teicneolaíochtaí cúnta in iúl go difriúil iad: fógróidh léitheoirí scáileáin na scoránaigh ticbhosca mar “sheiceáil”/“gan seiceáil” (ós rud é, in ainneoin a gcuma, gur ticbhoscaí fós iad go bunúsach), ach fógrófar na cnaipí scoránaigh seo mar “cnaipe”/“cnaipe brúite”. Beidh an rogha idir an dá chur chuige seo ag brath ar an gcineál scoránaigh atá á chruthú agat, agus cé acu an ndéanfaidh nó nach ndéanfaidh an scoránaigh ciall d'úsáideoirí nuair a fhógraítear é mar bhosca seiceála nó mar chnaipe iarbhír.

Scoránaigh stáit

Cuir data-bs-toggle="button"le staid an chnaipe a scoránaigh active. Má tá tú ag scoránú cnaipe roimh ré, ní mór duit an .activerang a shuimiú de láimh agus aria-pressed="true" a chinntiú go gcuirtear in iúl go cuí é do theicneolaíochtaí cúnta.

<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>

Scoránaigh an nasc Nasc scoránaigh gníomhach Nasc scoránaigh díchumasaithe

<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 href="#" class="btn btn-primary disabled" tabindex="-1" aria-disabled="true" role="button" data-bs-toggle="button">Disabled toggle link</a>

Modhanna

Is féidir leat sampla cnaipe a chruthú leis an cruthaitheoir cnaipe, mar shampla:

var button = document.getElementById('myButton')
var bsButton = new bootstrap.Button(button)

Modh	Cur síos
`toggle`	Scoránaigh an staid bhrú. Tugann sé an chuma ar an gcnaipe go bhfuil sé curtha i ngníomh.
`dispose`	Scriosann cnaipe eilimint. (Baintear sonraí stóráilte ar an eilimint DOM)
`getInstance`	Modh statach a ligeann duit an t-ásc cnaipe a bhaineann le heilimint DOM a fháil, is féidir leat é a úsáid mar seo:`bootstrap.Button.getInstance(element)`
`getOrCreateInstance`	Modh statach a thugann ar ais ásc cnaipe a bhaineann le heilimint DOM nó a chruthaíonn ceann nua ar eagla nach gcuirfí inisealaithe é. Is féidir leat é a úsáid mar seo:`bootstrap.Button.getOrCreateInstance(element)`

Mar shampla, a scoránaigh go léir cnaipí

var buttons = document.querySelectorAll('.btn')
buttons.forEach(function (button) {
  var button = new bootstrap.Button(button)
  button.toggle()
})

Sass

Athróga

$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%;

Meascáin

Tá trí mheascán ann do chnaipí: meascáin athraitheacha imlíne cnaipe agus cnaipe (an dá cheann bunaithe ar $theme-colors), chomh maith le mixin méid cnaipe.

@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);
}

Lúb

Úsáideann malairtí cnaipí (le haghaidh cnaipí rialta agus imlíne) a meascáin faoi seach lenár $theme-colorsléarscáil chun na haicmí mionathraithe a ghiniúint i 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);
  }
}